Brake-beam.



H. ZIEMSS, JR.

BRAKE BEAM.

APPLICATION FILED FEB.21,1912.

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EETTED STATES PATEN T EETEE.

HENRY ZIEMSS, JR., OF CHICAGO, ILLINOIS, ASSIGNOR T0 CHICAGO RAILWAYEQUIP- MENT COMPANY, OF CHIOAGO ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE-BEAM.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed February 21, 1912. Serial No. 679,177.

T 0 all whom 2'25 may concern.

Be it known that I, HENRY ZmMss, J r., a citizen of the United States,residing at Chicago, State of Illinois, have invented a certain new anduseful Improvement in Brake-Beams, of which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, forming part of this specification, inwhich Figure 1 is a top plan view of my improved brake beam. Fig. 2 is afragmental edge elevation of the beam. Fig. 3 is a sectional view of thecompression member. Fig. 4 is a sectional view of a modified form ofcompression member.

This invention relates to a new and useful improvement in brake beams,the object being to provide a simple, cheap and strong beam, theessential feature of which consists in splitting and separating the webcompression member from its flanges, so as to form a trussed member.Means are also provided for spacing and holding together the splitportions of the compression member.

In the embodiment selected for illustration, the brake beam comprises acompression member 1 of trussed construction, a tension member 2, and astrut 3 extending between the middle portions of said com pressionmember and said tension member. The compression member may be formedfrom a commercially rolled beam, such as a channel or U-shaped bar, thechannel por- -tion preferably facing toward the tension member 2 of thebeam. In making the compression member 1, a pair of slits 4 are outlongitudinally through the back portion of the channel bar, said slitsforming between them a longitudinal portion or strip 5 integral at itsends with the channel bar. The strip 5 is then bowed or bent laterallyout of its normal position in the body of the bar, and is held in suchbowed position by strut means which may be integral with the main strut3. The side portions of the compression member may be spread apart, asindicated in Fig. 2. The strut means above referred to comprise aportion 6 integral with one end of the strut 3, which portion surroundsthe compression member 1 and has two lugs 7 thereon to hold the sidepor' tions of the compression member spread apart, as shown in Figs. 2and 3. Lugs or ribs 8 upon the strut 3 determine the outward bend of thestrip 5, and said strip may be held in its bowed position by means suchas lugs 9 on the strut 3 bent into engage ment with the strip. Ifdesired, sleeves 10 may be placed on the compression member tostrengthen the same.

The ends of the tension member 2 lie in the channel of the compressionmember 1, and a sleeve 11 is placed upon the ends of the tension andcompression members, the ends of the tension member extending beyondsaid sleeve, and having nuts 12 threaded thereon to secure said memberstogether and to give the compression member more or less camber. Thebrake heads 13 are supported upon the sleeves 11. If desired, thecompression member 1 may be in the form of an I beam, as shown in Fig.1, the strip 5 being formed by slitting the web of the beam and bowingsaid strip laterally, as clearly indicated in said figure.

What I claim is:

1. A brake beam comprising a compression member, a tension member, astrut eX- tending between said members, said compression membercomprising a body portion having a longitudinal portion dividedtherefrom, said longitudinal portion being bowed away from said bodyportion, and means for holding said longitudinal portion in such bowedposition.

2. A brake beam comprising a compression member having a longitudinalportion bowed away from the body of said member, a tension member, trussmeans extending between said tension and said compression members, andmeans carried by said truss means for holding said longitudinal portionin its bowed position.

3. A brake beam comprising a tension member, a compression member havinga longitudinal strip bowed therefrom, truss means extending between saidtension and said compression members, and lugs on said truss means forholding said strip in its bowed position.

4:. A brake beam comprising a compression member formed by cutting alongitudinal strip from the body of said member, bowing said strip outof its normal plane, and spreading the portions at opposite sides ofsaid strip, a tension member, truss means extending between said tensionmember and said compression member, and means carried by said trussmeans for holding said strip in its bowed position and for holding saidportions spread apart.

5. A brake beam comprising a compression member, a tension member, atruss extending between said members, said compression member beingformed from a channel bar, the back of which has a longitudinal stripbowed laterally out of the plane of said back, and means for holdingsaid strip in such bowed position.

6. A brake beam comprising a tension member, a compression member formedfrom a channel bar, said bar facing toward said tension member andhaving a longitudinal strip cut from its back and bowed toward saidtension member, and truss means extending between said tension memberand said compression member, said means having a portion for holdingsaid strip in its bowed position.

7 A brake beam comprising a tension member, a compression member havinga longitudinal portion divided therefrom and bowed laterally toward saidtension member, and truss means extending between said tension memberand said compression member, said means holding said strip in its bowedposition.

8. A brake beam comprising a tension member, a compression member formedfrom a channel bar, the back of which has I a longitudinal strip bowedlaterally away therefrom, a truss extending between said tension memberand said compression member, and projections on said truss engaging saidstrip to hold it in its bowed position.

9. A brake beam comprising a tension member, a compression member formedfrom a channel bar, the back of which bar has a longitudinal strip bowedlaterally away therefrom, a truss extending between said tension memberand said compression member, the end of said truss adjacent thecompression member surrounding said member, and lugs on the trussengaging said strip for holding the latter in its bowed position.

10. A compression member for brake beams having a longitudinal portionbent laterally away from the body of the member, the parts of the memberat opposite sides of said longitudinal portion being spread apart, andmeans for holding said longitudinal portion and said side parts in thesaid positions. V

11. A trussed member for brake beams comprising a commercial rolled beamhaving a longitudinal strip bowed out of its normal plane, the portionsof the beam at opposite sides of said strip being spread apart, andmeans for holding said strip and side portions in the said positions.

In testimony whereof I hereunto atfix my signature in the presence oftwo witnesses, this 6th day of February, 1912.

HENRY ZIEMSS, JR. \Vitnesses:

ARTHUR M. HAMMANN, ROBERT W. HAMMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

